Printing or stamping cellulose tubes and other articles



Feb. 2, 1932. A M. wlcKwlRE. JR 1,843,373

PRINTING' 0R STAIPIHG GELLULQSB 'IV'UBES m 01m ABITIGLES Filed Sept. 19. 193e g su.,.nsf-sheet 2- INVENT OR.' A57/iw? M W/r/fw/KQJK atented Feb. 2, 1932 @ARTHUR EZ. WICKWEE, lJB., 0.'3 NUTLEY, NEW JERSEY, ASSIGNOR OF ONE-HALF T0k ANTHONY GUITEBREZ, 0F PASSAIC, NEW JERSEY, AND' ONE-HALF T0 PE-ERLESS ROLL LEAF COM? TION 0E NEW Y0 INCORPORATED, 0F `UNION CITY, NEW JERSEY, A CORPORA- PEINTING GR STAMPING CELLULOSE TUBES AND `OTHER' ARTLCLES Application tiled September 18, 1980. lSerial Eo. 4a3,115.

chines adapted to handle peculiar articles. rapidly and eiiiciently.

The invention has for an object to provide an improved stamping machine in which the regularity and clear outline of the impression may be insured. To this end, in addi- 1@ ti'onjto improving the feed of roll printing stamping material, it is an ann to present a novel means to secure a rotating platen disc or dial plate and the die rigidly in position and in a mutual lixed relation during the makin ofthe impression, there having been diiculty heretofore ina machine of this character from..

instability. lt is a special aim to enable the locking of the platen very rinidly in stationary position during thev mailling of an impression, notvvithstandinf7 that a rapid stepi -step dial movement oitF the platen is effected. ln the stampin of articles to impress characters in metal leaf or pigment one of the most practical methods involves the use of a heated die in a vertically reciprocating head, and a dial Cplate moved stepby-step aving article-hol ing meansy thereon so that thearticles are brought into alinement successively with the die and held sta- 9 tionary while the die is pressed thereupon,

a Web-carrying the metal leaf, ink or pi ment being fed between the die and artic e during the clearance of the die. During the im ression the heating of the web causes a so ening of the printing material, so that'if there is any slight tendency of the laten to move horizontally'relatively to the ie, while the heated web is initially enga ing the article, auch movement will not e opposed,

and a blurring of the impression will result., A Geneva gear intermittent' action has heen` used in the movement of the dial plate, but it has not been found practicable to so construct this as to insure absolutely against such defeet, and it is an important attainment of my invention that the objection referred to is overcome.

lt is an important pur ose to coordinate the locking device peculiar y with the stamping head action,

Additional objects, advantages and features of invention will be found in the construction, arrangement and combination of parts, as involved in the embodiment of thc invention, and understood from the following description and accompanying drawings, wherein,

Figure 1 is a side view of the machine.

Figure 2 is a fragmentary top view of the dial plate and locking cam.

Figure 3 is a fragmentary cross section on the line 3-3 of Figure l.

Figure 4 is a front view of the device.

Fig. 5 is a fragmentary sideview from the left of Fig. 4.

Fig. 6 is a v1ew ol the face ofthe friction disk. v

There is illustrated a stamping machine comprising a pedestal l0, on which there is mounted a dial plate or Work holder l1,rotat able and moved step-by-step by means of Geneva gear (not illustrated) or other intermittent action, so coordinated with the stamping head l2 that during the interval of inertia of the plate l1 the head 12 may move down and engage the work on the plate. The mechanism (not illustrated) for operating the head is mounted in the .case 13 which is formed as an upward extension oli the pedestal. The stamping mechanism is so constructed in a familiar way as to be operated plate or work holder consists of acev Upon the top of the dial plate there are provided a plurality of pairs of guide plates 17 arranged each air in parallel relation and secured upon t e plate li in adjustable spaced relation. Radial channels 18 are thus formed between the plates l? in which there vmay he laid or inserted the articles whereby they are stamped, to he carried to position and held while thestamping head operates by step movement is in a counter clockwise. direction, as viewed from above, so that thev stamped articles, on the second sta e of movement after stamping are broug t to the lposition indicated at A, in Figures 3, 4 and 5.

At the head of each channel 18 on the dial plate there is a cross plate 29, forming the Ahead of the channel, and on this there is mounted a spring clip 30 extending a short distance over the channel, inclined downwardly to engage yieldingly on the bottom of the channel, its extremity curved upwardly so that an article to be stamped may be readil slipped under the clip to 'be frictionally eld.

The stamping head may be of a usual con# struction, but as illustrated includes a vertically reciprocable poll 20 mounted on the case 13 in a familiar way. On this poll a die chase 2l is removably secured, the details of this chase being old. Secured to the poll there is a substantially U-shaped frame 22 including front and rear side members 23,-

connected integrally at the left hand side of thel machine. 'n At the left an arm 24 on this frame'is projected diagonally outward and upward, upon which there is mounted a stock roll 25 of a color carrying or metal leaf-carrying web 26, which is fed beneath the die. 'Between the front and rear side members 23 at the right hand side there are mounted two corrugated lfeed rolls, a large lower one 27 on a fixed bearing and an upper smaller one 28 spring pressed upon the first in an approved manner. The members 23 of the head frame 22 are also formed with vertical guide bearings 31 at left and right of the poll, and in these there are slidable rods 32 threaded at their upper ends and engaged in knurled finger nuts 33 by which they are suppo'rted. Between each pair of rods there are revolubly mounted left and right clearing rolls 34 of very small diameter. Beneath these rolls passes the web 26, which is thus held clear of the die. The rods are provided with shoulders near their lower ends, and between these shoulders and the frame 22 there are confined springs 35 by which the rolls 34 are held at their lowermost positions, so as to hold the web clear of the die, but yieldable to engagement with the dial plate and parts thereon.f In order that the rolls 34 shall not press the web upon the parts of the dial plate in such manner as to soil the latter, or waste color or foil, the rods 32 are extended slightly below the rolls 34, so that when the stamping hea'd is lowered to engage the work, the ro s engage the dial plate or ide plates 17 and are raised, thereby permitting the web to be lifted into con- The stock roll is provided with a helical i friction tension and take-up spring 36 acting in a peculiar manner to effect the desired functions of this spring. The spring is anchored at one end to a stud shaft 37 carried fixedly by the arm 24 beforementioned, by means of` a collar 38 to which the end of the spring is permanently secured, and the collar 1 s slidable on the shaft 37 and held in adjusted positions by means of a set screw 39. The collar and spring are introduced around the end of the shaft and the collar pressed inward so as to compress the spring against the drum 25, thereby pressing the latter against an adjustable flange collar 40 on the shaft 37.

The` collar 40 is held in adjusted positions by a set screw' engaging the shaft 37, so that the roll may be adjusted to aline with the die. The end of the drum is formed with radial ribs 41 on its outer side, next the spring, and these ribs may be V-shaped fork spring 36 winding the roll slightly until' checked by the web becoming taut across the die. The shaft of the lower' feed roll 27 is extended through the front side member of the frame 22 and provided with a grooved wheel 43 around which there is stretched a -helical spring 44 resting in the groove, the

ends of the spring being secured to the frame 22 so that it acts as a brake.

`This shaft is also provided with a hand knob 45 by which the roll may be manually turned when necessary. The opposite end .of this roll shaft is provided with a ratchet and pawloperating device vincluding an oscillatable gear 46 revoluble on the shaft of the roll, and upon the gear there rests a rack bar 47, extending rearwardly and having'its rear end pivoted adjustably on a depending rigid slotted arm 48 fixed on the case 13.

By adjustment of this pivot on the arm 48 the degree of feed of the web 26 may be determined. With the rack bar horizontal when the stamping head is at the upper limit of its movement the minimum extent of feed for each stamping operation is involved, and thel higher the pivot is adjusted the greater the extent of the feed. A rack 49 holds the discharge end of the web outward of the dial plate so that it may drop clear of the machine. The dial plate is rotated by means of a Geneva movement similar'to that shown at 8 in neeefeve periphery o the plate 11 is formed with V- #shaped notches, the numberof which is the same as the number of channels 18 andthe A v notches are correspondingly spaced apart. -A

locking bar 55 is pivoted on the table plate 15 to the rear of the dial plate and is provided Sii with a wedge shaped bill 56 adapted to enter one notch whenever the plate 11 is stopped by the Geneva movement. The bar is held withdrawn by a spring 57, and is moved into engagement with the plate 11 by operation of the stamping head to make an impression. For this purpose, a depending arm ,is mounted on the rear side of the rear member 23 of the frame 22, the lowerend portion of which arm is formed with an inclined cam face 61 at the inner side, to wipe against the rear side of Jthe bar 55and press it toward the dial plate 11 as the stamping head descends. With the stamping head at the upper limit of its movement, the wiping face 61 extends beside the bar 55 a' distance. The table plate 15 is suitably apertured to receive the arm 60 therethrough. lt should be noted that the arm 60 is comparatively sturdy, but is nar.- rowed midway of itslength, for a distance, suiliciently to give -it a measure of yieldability in case the arm 55 engages the plate 11 positively before the downward movement of the inclined face 61 ein the bar 55 ceases. indeed it is the purpose that the arm 60 shall so unction, in order to insure positive locking ot the plate 11, without liability of beginning of loose movement after slight wear of the engaging parte. The `inclined face 61 is of less altitude than the vertical, movement of the stamping head and terminates at a vertical inner side 63, which will be engaged with the back side of the bar 55 while an impression is made by the stamping head on articles cartied by the dial plate.

A work holding and e'ecting means at A is provided to remove artlcles from the channels 18 at the left hand side of the machine, and that mechanismforms the subject of my copending application of even date with this application, improvements in printing or stamping cellulose tubes and other articles, Serial No. 483,114. lln operation, the work is fed to the channels 18 by an operator or any approved means, the plate 11 rotating constantly step by step, through operation of the Geneva gear and cam. .The stamping operation is ordinarily controlled b the foot pedal, depression of which causes t e stampinghead to operate. As articles in the channels 18 begin to arrive under the stamping. head, the peda'lis operated, and is kept depressed as long as articles are brought to position. As the head de-- scende, the arm 6i) presses the locking bar 55 into engagement with the plate 11 to hold it in secure registry with the die, the rods 32 engage the plate 11 permittin the web 26 to be lifted to the face of the die y take-up action of the roll 25 and therack bar 47 is caused to draw' the upper side of the gear 46 toward the left. The die now presses the web uponthe work and rises, causing the rack bar 47 to move the gear 46 oppositely to its first movement, at which time the ratchet will operate to turn the roll 27 and pull the web `further beneath the die against the action of the spring 36. The arm 60 is also 'disengaged-from the bar 55, which is ,returned to disengaged position with respect to the plate 11, by the spring. rlhe rods 32 press the rolls 34 downwardly to clear the web 26 from the die immediately after the impression, so that the web is freed to be fed beneath the die by the feed rolls 27-28, before the nextfstamping operation.

The stam ed article is moved from beneath the stam mg head by the next step movement mentioned.

l claim: 1. 1n a stamping machine, a stam ing head, means to operate the head, a table p ate,

'a rotatable dial plate over the table plate,

work holding members spaced about the dial plate, meansto rotate the dial plate step by step to aline the work holding members'successively with the stamping head, said dial plate having peripheral il-shaped notches, in number and spacing corresponding to the work holders, a locking member mounted over the table plate removably to wedge in the notches successively coincidently with ial plate 11, a new article being alinernent of respective work holders with the stamping head, a cam member carried by the stamping head' havin an inclined face to engage the locking mem er and move the latter into locking engagement with the dial plate, and yielding means to move the locking member to disengaged position.

2. The structure of claim 1, in which an opening is formed through the table plate, and thecam member has a side parallel to the movement of the `stamping head to engage the side of the openin during the op eration of the lstamping hea 3. A web feeding means'for machines of the character described, comprising a frame carried by the stamping head having feed rolls mounted thereon outwardly of and opposite end of the roll has a gear reivoluble thereon, a ratchet and pawl connection between the gear and roll, a vertical anchorage, a rack bar meshed with the gear and adjustably ivoted on the anchorage adjustable verticay thereon.

5. In a machine of the character described, a stamping head, a stock roll mountin carried there y including a shaft outwar ly of and above the die face of the head, a roll revoluble thereon, a thrust bearing for the roll adjustable on the shaft, a torsion and compression spring havin one end secured and adjustable on the sha t and its other end in pressing engagement-with the roll o posite the thrust bearing, means to feed we from the roll beneath the die vface of the head, the spring androll enga ement including means whereby rotation oft e roll will be torsionally resisted and stress of the spring will tend to rewind the roll, the engagement being yieldable to a predetermined excess torsional stress whereby slack produced in the web will be rewound by the spring, andthe web kept under tension.

6. The structure of the claim 5 in which circumferentially s faced irregularities are are formed on the ro l, the spring constructed to en age in the irregularities yieldingly, where y the engaged end ofthe spring will slip from one to another of the irregularities in succession when the torsion stress is suiicient to overcome the compression stress and friction on the spring end.

7. The structure of claim 5 including vertically movable spring pressed-roils at opposite sides of and slightly below the face 0f the die, means to limlt their -downward movement, and web feeding means, the web passn ingkbelow the last mentioned rolls.

. In testimony whereof I aiiix my signature.

ARTHUR M. WICKWIRE, JR. 

